similar to: Testing and has_many Questions

I have a script that I am using to populate a database from a CSV file: RAILS_ENV = ''development'' require File.dirname(__FILE__) + ''/../../config/environment'' require ''csv'' # Destroy existing data Residence.destroy_all # IMPORT DATA FROM apartments.csv db_file = "#{RAILS_ROOT}/db/apartments.csv" CSV.open(db_file, "r",

I''m trying to use has_many :through, since my join model deserves being more than just an intersection table. But when I try to break the association, the break only seems "temporary": Let''s say my two tables are Users and Colors, and the join model is Favorites. user = Users.find(1) user.colors.length >> 2 c = user.colors.first >> #<Color:....>

I have the following models: class Resume belongs_to :resume_assignments end class User belongs_to :resume_assignments end class ResumeAssignment has_one :resume has_one :user end When I delete a resume, I want to make sure that its associated ResumeAssignment gets deleted also. Calling destroy_all to delete some resumes doesn''t seem to do this. Is there an option that will

Given the following class Programmer < ActiveRecord::Base has_many :assignments has_many :projects, :through => :assignments end if I call Programmer#projects.clear, it will delete_all the joining assignments; however, I have a situation where I''d like the assignments to get destroyed instead so that their after_destroy callbacks get called. It would be simple to

On p. 299 of the current Rails book it says that "Active Record takes care of saving all the dependent child rows when you save a parent row." So, when I add a row to the table that has "belongs_to" in its model, shouldn''t the table with the "has_many" be updated with data from the foreign key? If not, how do I save data from a form into more than one

hi there, i thing i just have a logical problem. i have following models. class Area < ActiveRecord::Base belongs_to :taskschedule belongs_to :service end class Service < ActiveRecord::Base has_many :taskschedules, :through => :areas has_many :areas end class Taskschedule < ActiveRecord::Base has_many :services, :through => :areas has_many :areas end Following View

what is the difference between destroy and delete in AR I am not sure what they mean by "Destroys the record with the given id by instantiating the object and calling destroy<http://api.rubyonrails.com/classes/ActiveRecord/Base.html#M000866>(all the callbacks are the triggered). If an array of ids is provided, all of them are destroyed." in

I have a model class in rails that has a class variable that is a ferret index. For some reason, the methods in my class that refer to the class variable are getting lock conflicts. Can anybody see any obvious reason why? I notice that it keeps leaving a lock file in the index directory. I thought auto_flush was supposed to remove the lock automatically after every operation. Is there

Hi all, When i use the ''delete_all'' function to remove a few rows from my database, it causes a deadlock on the sql server. The delete seems to be successful, it then redirects to the ''view'' page, and the record does appear to be deleted as far as the ''view'' rails page shows. BUT if i go into sql query analyser, i can''t do a

All, I''m populating a view with checkboxes in a list. I want to be able to assign to my has_many relationship using the post values of these checkboxes. Essentially, I want to populate the relationship table which will create the correct join values in my model. Here is my check_box_tag code: <%= check_box_tag("@current_job[target_list_ids][]",

Hi, I was very surprised by difference of delete_all on association vs model(delegated to relation). Given TaskFilter.has_many(:qualifiers, :class_name=>''TaskFilterQualifier'') TaskFilter.delete_all => one DELETE statement Without :dependent option on "qualifiers" association TaskFilter.first.qualifiers.delete_all => SELECT `task_filter_qualifiers`.* FROM

Hello all, I am interested in using BackgrounDRb to clear out ActiveRecord based sessions. I have this working, just with a small hitch, here is the code: class ClearSessionsWorker < BackgrounDRb::Rails repeat_every 7.minutes first_run Time.now def do_work(args) Session.destroy_all(["updated_at < ?", 20.minute.ago ]) end end It''s not very complicated and

Hi, I''m trying to create a Blog in it''s own subdirectory for an E-commerce site. Everything is hooked up just fine for the basic posting, but when I try to add Comments, I''m getting all sorts of headaches! I''m referring to the screencast by Ryan Bates on the rubyonrails.org site. Basically, my controller is Blog::Comments, in my Blog::Post comment form I have

Hi I am using seed_fu to seed initial data to tables (http://github.com/mbleigh/seed-fu) . And in db/fixtures/state.rb I have values like (I am filling only two data for simplicity) State.seed_many(:name, :abbr,:fips,:country_id, [ { :name => "Alberta", :abbr => ''AB'',:fips => ''01'', :country_id => 2 }, { :name =>

I''m on the downhill side of a large project that requires an additional integer field to be added to the tag.rb in acts_as_taggable. I feel I have a good understanding of ActiveRecord and have performed the correct migrations. (As a short background for those following this thread) when one wants to add tags to a model they call the ''tag_with'' method that jumps into

Hi, What is the best way to delete all members of a model? For example I have a tasks model and want to put a link in that will delete all tasks at once. Something like, @tasks = Task.all @tasks.each { |task| task.destroy } Do I need another action for this, and what should the link to it be? cheers, DAZ --~--~---------~--~----~------------~-------~--~----~ You received this message because

Hi there I have an habtm association between 2 Models. I regularly have to truncate the table on one side of the relationship and repopulate the table with a fresh csv file. I notice that f I do Model.delete_all, none of the records in my habtm join table get deleted, whereas if I use destroy_all they do. However, the overhead of using destroy_all is too great. For the amount of records I have

Hi! I''ve just a created a really simple rails scheduled worker for backgroundrb to start playing with : class SessionCleanerWorker < BackgrounDRb::Worker::RailsBase def do_work(args) logger.info "SessionCleaner> started" CGI::Session::ActiveRecordStore::Session.destroy_all( [''updated_at <?'', 120.minutes.ago] )

I, like many of you, have been searching for a good way to handle running long processes in Rails. So I rolled my own solution. I really want feedback! (I''ve tested this on very simple hello world examples, so don''t use it on anything production yet) . Grab the plugin: http://opensvn.csie.org/rails_cron Here''s the README: OVERVIEW ======== RailsCron is a way to

I would like to put Ruby code inside a string, between <%= %> tags, and have the code inside the tags executed when the string is displayed. Is this possible? -- Posted via http://www.ruby-forum.com/.